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Transmission system

一种影像信号、发送装置的技术，应用在传输系统、数字传输系统、基带系统等方向，能够解决信号传输困难等问题，达到稳定帧速率、抑制发热的效果

Inactive Publication Date: 2015-04-15
PANASONIC INTPROP MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to transmit a large amount of data, the speed of the frequency is increasing, but under the influence of the high frequency, the signal transmission becomes difficult due to the attenuation of the transmission line, etc.

Method used

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Comparison scheme
Effect test

no. 1 Embodiment approach

[0037] Figure 1A It is a diagram showing a frame format at the time of data transmission according to the first embodiment of the present disclosure. exist Figure 1A Among them, HSYNC represents the horizontal synchronization signal, and VSYNC represents the vertical synchronization signal. In addition, Vblank represents a vertical blanking period, and Hblank represents a horizontal blanking period. The period of Vblank or Hblank is a blanking period for transmitting non-image data. Non-video data is, for example, audio data and / or control data. Furthermore, Vactive represents a period other than the above-mentioned vertical blanking period, and Hactive represents a period other than the above-mentioned horizontal blanking period. The period of Vactive and Hactive is an active period for transferring video data.

[0038] Figure 1B yes means Figure 1A The binary-valued transmit signal 101 of the blanking period ( Figure 1A ) waveform diagram, Figure 1C yes means Fig...

no. 2 Embodiment approach

[0059] Figure 3A It is a block diagram showing the configuration of a transmission device 1A of a transmission system using the multilevel amplitude modulation method according to the second embodiment of the present disclosure. Figure 3A The transmission device 1A according to the second embodiment shown and Figure 2A Compared with the transmission device 1 according to the first embodiment shown, there are the following differences.

[0060] (1) The non-video signal generation unit 11 is Figure 2A A 1-bit non-image signal is generated in the Figure 3A A non-image signal of a × 1 bit is generated in it. Here, a is plural, and the following is the same. However, the case where a is 1 is the above-mentioned first embodiment.

[0061] (2) The video signal generator 12 is Figure 2A A plurality of N-bit image signals are generated in the Figure 3A A video signal of a×N bits is generated in the system.

[0062] (3) replace Figure 2A The binary signal generator 17 p...

no. 3 Embodiment approach

[0081] Figure 4 It is a diagram showing the frame format of transmission data according to the third embodiment of the present disclosure. exist Figure 4 Among them, it is characterized in that a transmission signal with a small multi-valued number is transmitted during a vertical blanking period 300b, which is a part of the blanking period, and a multi-valued number larger than that in the vertical blanking period 300b is transmitted in a period 300a other than the vertical blanking period 300b. A send signal of a multivalued number is transmitted.

[0082] Figure 5A It is a block diagram showing the configuration of a transmission device 1B of a transmission system using the multilevel amplitude modulation method according to the third embodiment of the present disclosure. Figure 5A The sending device 1B is shown with Figure 3A Compared with the transmission device 1A according to the third embodiment shown, the following points are different.

[0083] (1) In place...

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Abstract

This transmission system is provided with: a first multi-value signal generator (17A) that converts a non-video signal other than a video signal, which comprises a natural number (a) × a natural number of M bits, to a multi-value signal of a multi-value number (2aM), and outputs said multi-value signal; a second multi-value signal generator (18) that converts the abovementioned video signal, which comprises a natural number (a) × a natural number of N bits, to a multi-value signal of a multi-value number (2aN), which is larger than the abovementioned multi-value number (2aM), and outputs said multi-value signal; and a transmission driver circuit (16) that transmits the multi-value signal of the multi-value number (2aM) during at least part of a blanking period, and transmits the multi-value signal of the multi-value number (2aN) during an active period.

Description

technical field [0001] The present disclosure relates to a transmitting device, a receiving device, and a transmission system, and particularly relates to increasing the transmission rate by performing multi-value transmission in the amplitude direction for an active period including the video signal when transmitting a high-resolution video signal Technology. Background technique [0002] In recent years, along with the high image quality of video, the high bit rate and high definition of video signal have been promoted, and the amount of data transmitted on the digital interface has also increased. In order to transmit a large amount of data, the speed of the frequency is increasing, but under the influence of the high frequency, the signal transmission becomes difficult due to the attenuation of the transmission line and the like. In order to avoid this problem, without speeding up the frequency, a video signal compression method or a multi-valued signal transmission met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/08G09G3/20H04L25/49H04N7/081H04N21/2343
CPCH04N7/083H04L25/4917H04N7/025H04N5/38H04N5/46
Inventor 高井康充新保努武柴田修
Owner PANASONIC INTPROP MANAGEMENT CO LTD
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